The Museum's brand-new Space Show, Dark Universe,opens in just one week on Saturday November 2.

Dark Universe hones in on two mind-bending astronomical discoveries, both suggesting that "ordinary matter"—stars, planets, people and puppies, even black holes—make up less than 5 percent of the universe. Dark matter, along with dark energy, astrophysicists hypothesize, comprises the rest.

For a preview, watch live next Monday, October 28, at 9 am EST as Neil deGrasse Tyson hosts a discussion with the team behind the Show.